Bolster for cars.



No. 774,698. PATENTED NOV. 8, 1904.

R. V. SAGE.

BOLSTER POR GARS.

APPLIOATIQN Hum Dnc. s, 1903.

N0 MODEL.

' WJTNESSES,

J /ge 7? [NVE/Viol?. 12"'- gi Agay@ ge... u cf. @QW

ATTO/CN UNITED STATES iPatented November 8, 1904.

PATENT OFFICE.

HOLSTER Fon CARS.

SPECIFICATION forming part of Letters Patent No. 774,698, dated November 8, 1904. Application flied December 3, 1903. Serial No. 183,609. (No model.)

To a/ZZ whom t may concern:

Be it known that I, RALPH V. SAGE, a citizen of the United States, residing in the borough of Westmont, in the county of Cambria and State of Pennsylvania, have invented certain new and useful Improvements in Bolsters for Cars; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My improved bolster has the general form of a box-girder stiffened by means of a tension member, the whole'thus acting as a truss, with the diierent parts-arrangedrelatively so as to avoid unnecessary weakening of the said parts and to obtain the required strength or carrying capacity with an economical construction.

rI`he main members of my bolster are two Z-bars, arranged with their webs vertical and parallel and their upper anges extending' inwardly, said Z-bars being connected together by suitable plates and rolled shapes. This arrangement i's quite effective, as it makes the bolster very stiff laterally and enables it to withstand any drawing or bufling strains communicated to it through the draft-sills. The bottom or tension member is formed, preferably, of achannel or trough section bent to the shape of an extended V, as shown, its flanges projecting downwardly adjoining and parallel to the webs of the Z-bars, whereby the bottom member may be connected to said webs by machine-riveting, which is a cheap and very efficient method of manufacture.

On top of the bolster, at the center, I rivet a cover-plate for adding strength to this portion of the structure and to serve as a support for the center bearing; which may be of any usual form. I also-provide side bearings, shown as plates, riveted across the top of the bolster and having the rivet-heads countersunk on the upper surface of said plates.

At the ends of my bolster I provide columnguides formed of crimped plates and end braces or diaphragms of channel-section, which serve to further stiifen the structure, the said braces and column-guides being securely attached to the bolster sides by means of through rivets or bolts.

At the center of the bolster I provide a strut composed of a single I-beam having a suitable king-pin socket formed therein by cutting a centric hole down through the upper flange and portion of the web thereof of proper size and depth to take the king-pin. rIhe said I-beam strut is riveted in place between the webs of the Z-bar members and forms a very strong brace or diaphragm for the main structure and a support for the load transmitted through the king-pin.

Having thus given a general description of my invention, Iwill now, in order to make the matter more clear, refer to the annexed sheet of drawings, which form part of this specification, and in which like figures refer' to like parts.

Figure lis a plan of my bolster. side elevation thereof, and Fig. 3 elevation.

Referring now to the various characters of reference upon the drawings, l represents the side members, shown as Z-bars, having Fig. 2 is a is an end -their lower flanges extending outwardly, said anges being partly cut away at the ends of the bolster to allow for the passage of the truck-columns.

2 is a cover-plate secured tothe central portion of the top of the bolster.

3 is a tension member, shown of channelsection, bent to the shape of an extended V and secured to and between the vZ-bar webs by means of rivets.

4 represents end brace members, shown as channels, the iianges of which project upwardly adjoining and parallel to the Z-bar webs and secured thereto by. means of throughrivets.

5 is a center bearing, 'and 6 represents the side bearings.

7 is a strut formed of an I-beam in which a circular opening is provided to act as a bearing for the king-pin, said I-beam 7 serving also as a brace or diaphragm for the structure at the center and asa support for the load which comes upon the center plate.

8 is the circular opening intended to receive the king-pin.

9 represents column guides formed of crimped plates and secured to the webs of the bolster by through bolts or rivets, as indicated in the drawings.

10 is a filler-plate iiveted under the coverplate 2 across the top of the strut 7.

11 represents filler-plates secured under the side bearings 6.

12 represents connection-angles which serve to reinforce the strut 7, as well as to fasten it to the bolster sides.

It will be noted from the drawings that the design is such that all the work of riveting or securing' the various parts together can be ac- Ycomplished from the outside, thus conducing to ease and economy of manufacture and repair.

Although I have shown my improvements in detail, I do not limit myself to the exact and specific particulars of the arrangement or sections shown and described, but may use such substitutions, modifications, or equivalents thereof as are embraced within the scope of my invention and as pointed out in the claims.

Having thus given a description of my invention, what I claim, and desire to secure by Letters Patent, is#

l. In a bolster, side members composed of two Z-bars arranged with their webs vertical and parallel and their upper flanges extending inwardly, a bottom member of channel form secured to and between the said webs by its externally-projecting flanges.

2. In a bolster, side members composed of two Z-bars arranged with their webs vertical and parallel and their upper flanges extending inwardly, a bottom member of channel form bent to the shape of an extended V secured to and between the said webs by its externallyprojecting flanges.

3. In a bolster, a center brace or strut composed of a rolled I-beam attached to the bolster sides by suitable means and provided with a king-pin socket formed by cutting a centric hole down through the upper flange and portion of' the web thereof.

4. In a bolster, side members composed of two Z-bars arranged with their webs vertical ,l and parallel and their upper flanges extending inwardly, a bottom member of channel form bent to the shape of' an extended V and secured to and between 'the said webs by its externally-projecting flanges, end braces comprising pieces of rolled channels placed between and attached to the bolster sides by their upwardly-projecting flanges.

In a bolster, side members composed of two Z-bars arranged with their webs vertical and parallel and their upper flanges extending inwardly, a bottom tension member of channel form attached to the ends of said side members, end braces comprising pieces of rolled channels placed between and attached to the bolster sides by their upwardly-projecting flanges. p

6. In a bolster, side members composed of two Z-bars arranged with their webs vertical and parallel and their upper flanges extending inwardly, end braces comprising pieces of rolled channels placed between and attached to said side members by their upwardly-projecting flanges, crimped-plate column-guides secured to the Z-bar webs by bolts or rivets passing therethrough.

7. In a bolster, side members composed of two Z-bars arranged with their webs vertical and parallel and their upper fianges extending inwardly, a bottom tension member of channel form secured to and between said side members at their ends by its downwardlyprojecting flanges, a cover-plate and center bearing attached to the central portion of said side members.

8. In a trussed bolster, side members composed of two Z-bars arranged with their webs vertical and parallel and their upper flanges extending inwardly, atension member of channel form bent to the shape of an extended \l secured to and between said side members at their ends by its downwardly-projecting flanges.

9. In a trussed bolster, side members composed of two Z-bars arranged with their webs vertical and parallel and their upper flanges extending inwardly, a bottom member of channel form bent to the shape of an extended V secured to and between said side members at their ends by its downwardly-projecting flanges, end braces comprising pieces ofl rolled channels placed between and attached to the bolster sides by their upwardly-projecting flanges.

10. In a trussed bolster, side members of uniform section composed of two Z-bars arranged with their webs vertical and parallel and their upper flanges extending inwardly, a bottom member of channel form bent to the shape of an extended \l secured to and between said side members at their ends by its downwardly-projecting flanges, end braces comprising pieces of rolled channels placed between and attached to the bolster sides by their upwardly-projecting flanges, crimpedplate column-guides secured to said bolster sides by through bolts or rivets.

Il. A trussed bolster comprising side members composed of two Z-bars arranged with l their webs vertical and parallel and their upper IOO IIO

flanges extending inwardly, a bottom member of channel form bent to the shape of an eX- tended V secured to and between said side members at their ends by its downwardly-projecting flanges, a center brace or strut formed of an I-beam, means for connecting said center brace or strut to the bolster sides, end braces composed of pieces of rolled channels placed between and attached to the bolster sides by their upwardly-projecting flanges.

12. A trussed bolster comprising side members composed of two Z-bars arranged with their webs vertical and parallel and their upper flanges extending inwardly, a bottom member of channel form bent to the shape of an extended V secured to and between said web members at their ends by its downwardly-projecting flanges, a center brace or strut formed of an I-beam provided with a suitable kingpin socket formed therein by cutting a centric hole down through the upper ange and portion lof the web thereof, a top cover-plate and center bearing secured to the upper flanges of the said side members, flat-plate side bearings, end braces composed of pieces of rolled channels, crimped-plate column-guides, said end braces and column-guides being secured to the bolster sides by through rivets or bolts. In testimony whereof I hereto affix my signature in the presence of two witnesses.

RALPH V. SAGE. Witnesses:

J. R. WEMLINGER, R. M. GREENE. 

